Fig. 2.

(A) AQ and ISIS terrorist activity as percentage of world total. Between 2004 and 2014 the AQ curve includes contributions from ISIS and its precursors. Pre-2004 data in the ISIS curve are due to JTJ, its first precursor; post-2014 data are attacks by ISIS operating independently from AQ. The limited activity in 2006 is most likely due to the great regional turmoil at the time, with the media (and the GTD) unable to identify attackers. Indeed, the total number of attacks in the Middle East increased from 2005 to 2006 but so did the number of incidents with unknown perpetrators. (B) Yearly AQ affiliate attacks. (C) Yearly ISIS affiliate attacks. Note the diverging trends after the 2014 AQ/ISIS rift.